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#include "neopix.h"
#include "ws2812.pio.h"
#include "util.h"
#include "hardware/pio.h"
void
neopix_init(struct neopix *pix, uint pin)
{
uint offset;
int sm;
pix->pio = pio0;
sm = pio_claim_unused_sm(pix->pio, true);
ASSERT(sm >= 0);
pix->sm = (uint) sm;
pix->pin = pin;
offset = pio_add_program(pix->pio, &ws2812_program);
ws2812_program_init(pix->pio, pix->sm, offset,
pix->pin, 800000, false);
pix->init = true;
}
void
neopix_put(struct neopix *pix, uint32_t rgb) {
pio_sm_put_blocking(pix->pio, pix->sm, rgb << 8u);
}
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